Mark Xu
Partner·Index Ventures
New York, United States
Mark Xu is a Partner at Index Ventures investing across all stages in cybersecurity, infrastructure, and AI. His Index profile says he looks to partner with technical founders showing deep domain expertise, hustle, and customer obsession. The firm also notes he has backed frontier AI companies including Flapping Airplanes, Simile, Fireworks, Parallel, and 7AI since joining Index.
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